PubMed · 2855922
An interactive dot matrix system for locating potentially significant features in nucleic acid molecules.
Abstract
An interactive computer system using a dot matrix approach has been developed and used to determine potentially significant features due to distortions in the B-DNA helix as a result of variations of purine and pyrimidine patterns. Sequences were compared using matrices which were generated using the Calladine-Dickerson rules (C.R. Calladine, J. Mol. Biol. 161, 343-352, 1982 and R.E. Dickerson, J. Mol. Biol. 166, 419-441, 1983). Having control over various parameters to enhance different aspects of the visual appearance of these matrices was helpful in discovering patterns that were not known a priori. Specifically, it was found that a pattern of alternating doublets of purines and pyrimidines appear to exist in regulatory regions. This event is shown to be beyond probabilistic expectation.
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B A Shapiro, R Nussinov, L E Lipkin, J V Maizel. 1987. An interactive dot matrix system for locating potentially significant features in nucleic acid molecules.. https://doi.org/10.1080/07391102.1987.10507673
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